在幻影模型中跨直肠剪切波弹性图的变性
Journal of the Korean Society of Radiology
|October 23, 2023
概括
跨直肠剪切波弹性图 (SWE) 的变化受幻影大小,深度和超声波机器的影响. 这些因素影响SWE测量,对于准确的评估至关重要.
科学领域:
- 医疗成像医学成像
- 超声波技术 超声波技术 超声波技术
- 生物医学工程 生物医学工程
背景情况:
- 剪波弹性图 (SWE) 是一种新兴的超声波技术,用于组织硬度评估.
- 跨直肠SWE应用需要理解测量变化.
- 幻影研究对于评估弹性学方法的一致性至关重要.
研究的目的:
- 评估跨直肠切割波弹性学 (SWE) 测量的变性.
- 调查幻影特征和获取参数对SWE可变性的影响.
- 为了在受控的幻影环境中确定跨直肠SWE的可靠性.
主要方法:
- 使用了定制设计的幻影,尺寸 (1-3厘米),形状 (圆形,立方形) 和材料 (,乳液) 不同.
- 在不同的深度 (1-3厘米) 和兴趣区域 (ROI) 位置 (中心,外围) 评估SWE值,使用来自不同供应商的两个超声波机器.
- 使用变化系数 (CV) 评估变化,并通过类内相关系数分析内部/内部运营商协议.
主要成果:
- 随着幻影大小的增加,SWE变化率 (CV) 降低,但随着深度的增加而增加.
- 根据幻影大小,深度,形状,ROI位置和超声波机器观察到SWE值的显著差异.
- 达成了优秀的内部/运营商间协议 (ICC>0.9),表明了高可重现性.
结论:
- 幻影的大小,深度和超声波机器显著影响直肠外SWE变异性.
- 了解这些影响因素对于优化跨直肠SWE协议至关重要.
- 这项研究强调了需要在跨直肠弹性图学中标准化基于幻影的质量保证.
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